+/*
+ * AT-SPI - Assistive Technology Service Provider Interface
+ * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
+ *
+ * Copyright 2001, 2002, 2003 Sun Microsystems Inc.,
+ * Copyright 2001, 2002, 2003 Ximian, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <cspi/spi-private.h>
+
+static GSList *_cspi_event_queue = NULL;
+
+/**
+ * SPI_freeAccessibleKeySet:
+ * @keyset: An AccessibleKeyset to free.
+ *
+ * Release the memory used by an AccessibleKeySet.
+ *
+ **/
+void
+SPI_freeAccessibleKeySet (AccessibleKeySet *keyset)
+{
+ int i = 0;
+ g_free (keyset->keysyms);
+ g_free (keyset->keycodes);
+ while (keyset->keystrings [i])
+ {
+ g_free (keyset->keystrings [i++]);
+ }
+ g_free (keyset->keystrings);
+ g_free (keyset);
+}
+
+/**
+ * SPI_createAccessibleKeySet:
+ * @len: the number of key values in the key set.
+ * @keysyms: a UTF-8 string containing symbolic key values to be matched, or NULL if
+ * matching is performed against other key values instead.
+ * @keycodes: an array of unsigned short values which are the hardware keycodes
+ * to be matched, or NULL if the keyset is specified solely by keysyms
+ * and/or keystrings.
+ * @keystrings: an array of null-terminated character strings which specify key
+ * name values to match, or NULL if the keyset is specified solely by
+ * keycodes and/or keysyms.
+ *
+ * Create a new #AccessibleKeySet of a specified length.
+ * A KeySet is used typically to match key event values, and a matches are made
+ * using the following criteria: a match exists with a key event if all non-null
+ * i-th members of the keyset match the key event.
+ * If both keystring and keysym values are NULL, a keycode value match is
+ * forced, thus the match for keysym=0, keycode=0, keystring=NULL is
+ * keycode 0.
+ *
+ * Returns: a pointer to a newly-created #AccessibleKeySet.
+ *
+ **/
+AccessibleKeySet *
+SPI_createAccessibleKeySet (int len, const char *keysyms, short *keycodes,
+ const char **keystrings)
+{
+ AccessibleKeySet *keyset = g_new0 (AccessibleKeySet, 1);
+ int i, keysym_len = 0;
+ const char *keysym_ptr = keysyms;
+ keyset->len = len;
+ keyset->keysyms = g_new0 (unsigned long, len);
+ keyset->keycodes = g_new0 (unsigned short, len);
+ keyset->keystrings = g_new0 (char *, len);
+ if (keysyms)
+ {
+ keysym_len = g_utf8_strlen (keysyms, -1);
+ }
+ for (i = 0; i < len; ++i)
+ {
+ if (i < keysym_len)
+ {
+ keyset->keysyms [i] = (unsigned long) g_utf8_get_char (keysym_ptr);
+ keysym_ptr = g_utf8_find_next_char (keysym_ptr, NULL);
+ }
+ else
+ {
+ keyset->keysyms [i] = 0;
+ }
+ if (keycodes)
+ {
+ keyset->keycodes [i] = keycodes [i];
+ }
+ if (keystrings)
+ {
+ keyset->keystrings [i] = g_strdup (keystrings [i]);
+ }
+ }
+ return keyset;
+}
+
+/**
+ * SPI_createAccessibleEventListener:
+ * @callback : an #AccessibleEventListenerCB callback function, or NULL.
+ * @user_data: a pointer to data which will be passed to the callback when invoked.
+ *
+ * Create a new #AccessibleEventListener with a specified (in-process) callback function.
+ *
+ * Returns: a pointer to a newly-created #AccessibleEventListener.
+ *
+ **/
+AccessibleEventListener *
+SPI_createAccessibleEventListener (AccessibleEventListenerCB callback,
+ void *user_data)
+{
+ AccessibleEventListener *listener = cspi_event_listener_new ();
+ if (callback)
+ {
+ AccessibleEventListener_addCallback (listener, callback, user_data);
+ }
+ return listener;
+}
+
+/**
+ * AccessibleEventListener_addCallback:
+ * @listener: the #AccessibleEventListener instance to modify.
+ * @callback: an #AccessibleEventListenerCB function pointer.
+ * @user_data: a pointer to data which will be passed to the callback when invoked.
+ *
+ * Add an in-process callback function to an existing AccessibleEventListener.
+ * Note that the callback function must live in the same address
+ * space as the AccessibleEventListener implementation code, thus one should not
+ * use this function to attach callbacks to a 'remote' event listener
+ * (that is, one that was not created by a client call to
+ * createAccessibleEventListener ();
+ *
+ * Returns: #TRUE if successful, otherwise #FALSE.
+ *
+ **/
+SPIBoolean
+AccessibleEventListener_addCallback (AccessibleEventListener *listener,
+ AccessibleEventListenerCB callback,
+ void *user_data)
+{
+ cspi_event_listener_add_cb (listener, callback, user_data);
+ return TRUE;
+}
+
+/**
+ * AccessibleEventListener_unref:
+ * @listener: a pointer to the #AccessibleEventListener being operated on.
+ *
+ * Decrements an #AccessibleEventListener's reference count.
+ **/
+void
+AccessibleEventListener_unref (AccessibleEventListener *listener)
+{
+ cspi_event_listener_unref (listener);
+}
+
+/**
+ * AccessibleEventListener_removeCallback:
+ * @listener: the #AccessibleEventListener instance to modify.
+ * @callback: an #AccessibleEventListenerCB function pointer.
+ *
+ * Remove an in-process callback function from an existing AccessibleEventListener.
+ *
+ * Returns: #TRUE if successful, otherwise #FALSE.
+ *
+ **/
+SPIBoolean
+AccessibleEventListener_removeCallback (AccessibleEventListener *listener,
+ AccessibleEventListenerCB callback)
+{
+ cspi_event_listener_remove_cb (listener, callback);
+ return TRUE;
+}
/**
- * createEventListener:
- * @callback : an #SpiAccessibleEventListenerCB callback function, or NULL.
+ * SPI_createAccessibleKeystrokeListener:
+ * @callback : an #AccessibleKeystrokeListenerCB callback function, or NULL.
+ * @user_data: a pointer to data which will be passed to the callback when invoked.
*
- * Create a new #SpiAccessibleEventListener with a specified callback function.
+ * Create a new #AccessibleKeystrokeListener with a specified callback function.
*
- * Returns: a pointer to a newly-created #SpiAccessibleEventListener.
+ * Returns: a pointer to a newly-created #AccessibleKeystrokeListener.
*
**/
-SpiAccessibleEventListener *
-createEventListener (SpiAccessibleEventListenerCB callback)
+AccessibleKeystrokeListener *
+SPI_createAccessibleKeystrokeListener (AccessibleKeystrokeListenerCB callback,
+ void *user_data)
{
- SpiAccessibleEventListener *listener = spi_accessible_event_spi_listener_new ();
+ AccessibleDeviceListener *listener = cspi_device_listener_new ();
if (callback)
{
- spi_accessible_event_spi_listener_add_callback (listener, callback);
+ AccessibleDeviceListener_addCallback (listener, callback, user_data);
}
return listener;
}
/**
- * EventListener_addCallback:
- * @listener: the #SpiAccessibleEventListener instance to modify.
- * @callback: an #SpiAccessibleEventListenerCB function pointer.
+ * AccessibleKeystrokeListener_addCallback:
+ * @listener: the #AccessibleKeystrokeListener instance to modify.
+ * @callback: an #AccessibleKeystrokeListenerCB function pointer.
+ * @user_data: a pointer to data which will be passed to the callback when invoked.
*
- * Add an in-process callback function to an existing SpiAccessibleEventListener.
+ * Add an in-process callback function to an existing #AccessibleKeystrokeListener.
*
* Returns: #TRUE if successful, otherwise #FALSE.
*
**/
-boolean
-EventListener_addCallback (SpiAccessibleEventListener *listener,
- SpiAccessibleEventListenerCB callback)
+SPIBoolean
+AccessibleKeystrokeListener_addCallback (AccessibleKeystrokeListener *listener,
+ AccessibleKeystrokeListenerCB callback,
+ void *user_data)
{
- spi_accessible_event_spi_listener_add_callback (listener, callback);
+ cspi_device_listener_add_cb (listener, callback, user_data);
return TRUE;
}
/**
- * EventListener_removeCallback:
- * @listener: the #SpiAccessibleEventListener instance to modify.
- * @callback: an #SpiAccessibleEventListenerCB function pointer.
+ * AccessibleKeystrokeListener_removeCallback:
+ * @listener: the #AccessibleKeystrokeListener instance to modify.
+ * @callback: an #AccessibleKeystrokeListenerCB function pointer.
*
- * Remove an in-process callback function from an existing SpiAccessibleEventListener.
+ * Remove an in-process callback function from an existing #AccessibleKeystrokeListener.
*
* Returns: #TRUE if successful, otherwise #FALSE.
*
**/
-boolean
-EventListener_removeCallback (SpiAccessibleEventListener *listener,
- SpiAccessibleEventListenerCB callback)
+SPIBoolean
+AccessibleKeystrokeListener_removeCallback (AccessibleKeystrokeListener *listener,
+ AccessibleKeystrokeListenerCB callback)
{
- spi_accessible_event_spi_listener_remove_callback (listener, callback);
+ cspi_device_listener_remove_cb (listener, callback);
return TRUE;
}
/**
- * createKeystrokeListener:
- * @callback : an #KeystrokeListenerCB callback function, or NULL.
+ * AccessibleKeystrokeListener_unref:
+ * @listener: a pointer to the #AccessibleKeystrokeListener being operated on.
*
- * Create a new #KeystrokeListener with a specified callback function.
+ * Decrements an #AccessibleKeystrokeListener's reference count.
+ **/
+void
+AccessibleKeystrokeListener_unref (AccessibleKeystrokeListener *listener)
+{
+ cspi_device_listener_unref (listener);
+}
+
+/**
+ * SPI_createAccessibleDeviceListener:
+ * @callback : an #AccessibleDeviceListenerCB callback function, or NULL.
+ * @user_data: a pointer to data which will be passed to the callback when invoked.
+ *
+ * Create a new #AccessibleDeviceListener with a specified callback function.
*
- * Returns: a pointer to a newly-created #KeystrokeListener.
+ * Returns: a pointer to a newly-created #AccessibleDeviceListener.
*
**/
-KeystrokeListener *
-createKeystrokeListener (KeystrokeListenerCB callback)
+AccessibleDeviceListener *
+SPI_createAccessibleDeviceListener (AccessibleDeviceListenerCB callback,
+ void *user_data)
{
- KeystrokeListener *listener = keystroke_spi_listener_new ();
+ AccessibleDeviceListener *listener = cspi_device_listener_new ();
if (callback)
{
- keystroke_spi_listener_add_callback (listener, callback);
+ AccessibleDeviceListener_addCallback (listener, callback, user_data);
}
return listener;
}
/**
- * KeystrokeListener_addCallback:
- * @listener: the #KeystrokeListener instance to modify.
- * @callback: an #KeystrokeListenerCB function pointer.
+ * AccessibleDeviceListener_addCallback:
+ * @listener: the #AccessibleDeviceListener instance to modify.
+ * @callback: an #AccessibleDeviceListenerCB function pointer.
+ * @user_data: a pointer to data which will be passed to the callback when invoked.
*
- * Add an in-process callback function to an existing #KeystrokeListener.
+ * Add an in-process callback function to an existing #AccessibleDeviceListener.
*
* Returns: #TRUE if successful, otherwise #FALSE.
*
**/
-boolean
-KeystrokeListener_addCallback (KeystrokeListener *listener,
- KeystrokeListenerCB callback)
+SPIBoolean
+AccessibleDeviceListener_addCallback (AccessibleDeviceListener *listener,
+ AccessibleDeviceListenerCB callback,
+ void *user_data)
+{
+ cspi_device_listener_add_cb (listener, callback, user_data);
+ return TRUE;
+}
+
+/**
+ * AccessibleDeviceListener_removeCallback:
+ * @listener: the #AccessibleDeviceListener instance to modify.
+ * @callback: an #AccessibleDeviceListenerCB function pointer.
+ *
+ * Remove an in-process callback function from an existing #AccessibleDeviceListener.
+ *
+ * Returns: #TRUE if successful, otherwise #FALSE.
+ *
+ **/
+SPIBoolean
+AccessibleDeviceListener_removeCallback (AccessibleDeviceListener *listener,
+ AccessibleDeviceListenerCB callback)
+{
+ cspi_device_listener_remove_cb (listener, callback);
+ return TRUE;
+}
+
+/**
+ * AccessibleDeviceListener_unref:
+ * @listener: a pointer to the #AccessibleDeviceListener being operated on.
+ *
+ * Decrements an #AccessibleDeviceListener's reference count.
+ **/
+void
+AccessibleDeviceListener_unref (AccessibleDeviceListener *listener)
+{
+ cspi_device_listener_unref (listener);
+}
+
+static char *
+cspi_internal_event_get_text (const InternalEvent *e)
+{
+ g_return_val_if_fail (e, NULL);
+ if (e->event.v_type == EVENT_DATA_STRING)
+ {
+ return g_strdup (e->event.v.text? e->event.v.text: "");
+ }
+ return NULL;
+}
+
+static Accessible *
+cspi_internal_event_get_object (const InternalEvent *e)
+{
+ g_return_val_if_fail (e, NULL);
+ if (e->event.v_type == EVENT_DATA_OBJECT)
+ {
+ cspi_object_ref (e->event.v.accessible);
+ return e->event.v.accessible;
+ }
+ return NULL;
+}
+
+static SPIRect *
+cspi_internal_event_get_rect (const InternalEvent *e)
+{
+ g_return_val_if_fail (e, NULL);
+ if (e->event.v_type == EVENT_DATA_RECT)
+ {
+ SPIRect *rect = g_new (SPIRect, 1);
+ if (rect) memcpy (rect, &e->event.v.rect, sizeof(*rect));
+ return rect;
+ }
+ return NULL;
+}
+
+/**
+ * AccessibleEvent_getSourceName:
+ * @e: an #AccessibleEvent to be queried.
+ *
+ * Get the 'accessible-name' of the object emitting the event.
+ *
+ * Returns: The name of the event source, or NULL if the event source cannot be identified
+ * or does not report a name.
+ */
+char* AccessibleEvent_getSourceName (const AccessibleEvent *e)
+{
+ if (e && e->source)
+ {
+ return Accessible_getName (e->source);
+ }
+ return NULL;
+}
+
+/**
+ * AccessibleEvent_getSourceRole:
+ * @e: an #AccessibleEvent to be queried.
+ *
+ * Get the #AccessibleRole of the object emitting the event.
+ *
+ * Returns: #AccessibleRole of the event source, or SPI_ROLE_UNKNOWN
+ * if the event source's role is unknown or unspecified.
+ * (Some kinds of events, such as 'mouse:' events or
+ * toolkit events, don't have associated object roles.)
+ */
+AccessibleRole AccessibleEvent_getSourceRole (const AccessibleEvent *e)
+{
+ if (e && e->source)
+ {
+ return Accessible_getRole (e->source);
+ }
+ return SPI_ROLE_UNKNOWN;
+}
+
+/**
+ * AccessibleEvent_getSourceApplication:
+ * @e: an #AccessibleEvent to be queried.
+ *
+ * Get the #Application hosting the object which emitted the event.
+ *
+ * Returns: A pointer to the host #Application contining the event source
+ * component.
+ */
+#if 0
+AccessibleApplication* AccessibleEvent_getSourceApplication (const AccessibleEvent *e)
+{
+xyzzy
+ InternalEvent *ie = (InternalEvent *)e;
+ CORBA_any *any = ((ie && ie->data) ? (CORBA_any *)ie->data : NULL);
+ if (any &&
+ CORBA_TypeCode_equivalent (any->_type,
+ TC_Accessibility_EventDetails, NULL))
+ {
+ Accessibility_EventDetails *details = (Accessibility_EventDetails *) any->_value;
+ return cspi_object_take (details->host_application);
+ }
+ else
+ return NULL;
+}
+#endif
+
+/**
+ * AccessibleEvent_getSourceDetails:
+ * @e: an #AccessibleEvent to be queried.
+ * @name: a pointer to a character string which will point to the name of the event source
+ * on successful completion of the call.
+ * @role: a pointer to an #AccessibleRole which will point to the role of the event source
+ * on successful completion of the call.
+ * @app: A pointer to an #AccessibleApplication which points to the host application for this event
+ * on successful completion of the call.
+ *
+ * Get the host #Application, "accessible name", and #AccessibleRole
+ * of the object which emitted the event.
+ *
+ * Returns: TRUE if the source details were successfully retrieved,
+ * FALSE if they were not, either due to error, incomplete data,
+ * or the fact that the event did not encapsulate the required data.
+ */
+#if 0
+SPIBoolean AccessibleEvent_getSourceDetails (const AccessibleEvent *e,
+ char **name, AccessibleRole *role,
+ AccessibleApplication **app)
+{
+ InternalEvent *ie = (InternalEvent *)e;
+ CORBA_any *any = ((ie && ie->data) ? (CORBA_any *)ie->data : NULL);
+ if (any &&
+ CORBA_TypeCode_equivalent (any->_type,
+ TC_Accessibility_EventDetails, NULL))
+ {
+ Accessibility_EventDetails *details = (Accessibility_EventDetails *) any->_value;
+ *name = CORBA_string_dup (details->source_name);
+ *role = cspi_role_from_spi_role (details->source_role);
+ *app = cspi_object_take (details->host_application);
+ return TRUE;
+ }
+ else
+ {
+ *name = NULL;
+ *role = SPI_ROLE_UNKNOWN;
+ *app = NULL;
+ return FALSE;
+ }
+}
+#endif
+
+/**
+ * AccessibleTextChangedEvent_getChangeString:
+ * @e: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type "object:text-changed",
+ * returning the text inserted or deleted.
+ *
+ * Returns: a UTF-8 text string indicating the text inserted,
+ * deleted, or substituted by this event.
+ **/
+char *
+AccessibleTextChangedEvent_getChangeString (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ /* TODO: check the event type. */
+ return cspi_internal_event_get_text (foo);
+}
+
+/**
+ * AccessibleTextSelectionChangedEvent_getSelectionString:
+ * @e: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type "object:text-selection-changed",
+ * returning the newly added, removed, or modified selection string.
+ *
+ * Returns: a UTF-8 text string indicating the recently changed selection.
+ **/
+char *
+AccessibleTextSelectionChangedEvent_getSelectionString (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ /* TODO: check the event type. */
+ return cspi_internal_event_get_text (foo);
+}
+
+/**
+ * AccessibleWindowEvent_getTitleString:
+ * @e: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type "window:",
+ * returning the window title.
+ *
+ * Returns: a UTF-8 text string representing the title of the
+ * recently changed window.
+ **/
+char *
+AccessibleWindowEvent_getTitleString (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ /* TODO: check the event type. */
+ return cspi_internal_event_get_text (foo);
+}
+
+/**
+ * AccessibleChildChangedEvent_getChildAccessible:
+ * @e: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type "object:children_changed"
+ * to get a reference to the changed #Accessible.
+ * Note that context #Accessibles are not guaranteed to outlive
+ * event delivery, in which case this call may return %NULL
+ * even if the object existed at the time of dispatch.
+ *
+ * Returns: the context #Accessible for the event, or %NULL if
+ * there is no longer a valid context #Accessible
+ * object for the event.
+ **/
+Accessible *
+AccessibleChildChangedEvent_getChildAccessible (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ return (Accessible *) cspi_internal_event_get_object (foo);
+}
+
+/**
+ * AccessibleParentChangedEvent_getParentAccessible:
+ * @e: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type "object:property-change:accessible-parent"
+ * to get a reference to the changed #Accessible.
+ * Note that context #Accessibles are not guaranteed to outlive
+ * event delivery, in which case this call may return %NULL
+ * even if the object existed at the time of dispatch.
+ *
+ * Returns: an #Accessible pointer representing the new parent object.
+ **/
+Accessible *
+AccessibleParentChangedEvent_getParentAccessible (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ return (Accessible *) cspi_internal_event_get_object (foo);
+}
+
+/**
+ * AccessibleActiveDescendantChangedEvent_getActiveDescendant:
+ * @e: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type "object:active-descendant-changed"
+ * to get a reference to the changed #Accessible.
+ * Note that context #Accessibles are not guaranteed to outlive
+ * event delivery, in which case this call may return %NULL
+ * even if the object existed at the time of dispatch.
+ *
+ * Returns: an #Accessible pointer representing the new active descendant.
+ **/
+Accessible *
+AccessibleActiveDescendantChangedEvent_getActiveDescendant (const AccessibleEvent *e)
{
- keystroke_spi_listener_add_callback (listener, callback);
+ const InternalEvent *foo = (InternalEvent *) e;
+ return (Accessible *) cspi_internal_event_get_object (foo);
+}
+
+/**
+ * AccessibleTableSummaryChangedEvent_getSummaryAccessible:
+ * @e: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type "object:property-changed:accessible-table-summary"
+ * to get a reference to the changed #Accessible.
+ * Note that context #Accessibles are not guaranteed to outlive
+ * event delivery, in which case this call may return %NULL
+ * even if the object existed at the time of dispatch.
+ *
+ * Returns: an #Accessible pointer representing the new table summary.
+ **/
+Accessible *
+AccessibleTableSummaryChangedEvent_getSummaryAccessible (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ return (Accessible *) cspi_internal_event_get_object (foo);
+}
+
+/**
+ * AccessibleTableHeaderChangedEvent_getHeaderAccessible:
+ * @e: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type
+ * "object:property-changed:accessible-table-row-header" or
+ * "object:property-changed:accessible-table-column-header"
+ * to get a reference to the changed #Accessible.
+ * Note that context #Accessibles are not guaranteed to outlive
+ * event delivery, in which case this call may return %NULL
+ * even if the object existed at the time of dispatch.
+ *
+ * Returns: an #Accessible pointer representing the new table header.
+ **/
+Accessible *
+AccessibleTableHeaderChangedEvent_getHeaderAccessible (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ return (Accessible *) cspi_internal_event_get_object (foo);
+}
+
+
+/**
+ * AccessibleTableCaptionChangedEvent_getCaptionString:
+ * @e: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type
+ * "object:property-changed:accessible-table-caption-object"
+ * returning the text in the caption, if present.
+ *
+ * Returns: a UTF-8 text string indicating the text in the caption.
+ **/
+char *
+AccessibleTableCaptionChangedEvent_getCaptionString (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ /* TODO: check the event type. */
+ return cspi_internal_event_get_text (foo);
+}
+
+/**
+ * AccessibleTableRowDescriptionChangedEvent_getDescriptionString:
+ * @e: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type
+ * "object:property-changed:accessible-table-row-description"
+ * returning the new table row description.
+ *
+ * Returns: a UTF-8 text string representing the recently changed
+ * table row description
+ **/
+char *
+AccessibleTableRowDescriptionChangedEvent_getDescriptionString (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ /* TODO: check the event type. */
+ return cspi_internal_event_get_text (foo);
+}
+
+/**
+ * AccessibleTableColumnDescriptionChangedEvent_getDescriptionString:
+ * @e: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type
+ * "object:property-changed:accessible-table-column-description"
+ * returning the new table column description.
+ *
+ * Returns: a UTF-8 text string representing the recently changed
+ * table column description
+ **/
+char *
+AccessibleTableColumnDescriptionChangedEvent_getDescriptionString (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ /* TODO: check the event type. */
+ return cspi_internal_event_get_text (foo);
+}
+
+/**
+ * AccessibleDescriptionChangedEvent_getDescriptionString:
+ * @e: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type
+ * "object:property-changed:accessible-description"
+ * returning the new description.
+ *
+ * Returns: a UTF-8 text string representing the recently changed
+ * description
+ **/
+char *
+AccessibleDescriptionChangedEvent_getDescriptionString (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ /* TODO: check the event type. */
+ return cspi_internal_event_get_text (foo);
+}
+
+/**
+ * AccessibleBoundsChangedEvent_getNewBounds:
+ * @e: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type "object:bounds-changed",
+ * returning a pointer to an SPIRect structure containing the
+ * new bounds, or NULL on error.
+ * The returned structure should be freed with SPI_freeRect when
+ * the caller has finished referencing it.
+ *
+ * @Since: AT-SPI 1.6
+ *
+ * Returns: a pointer to an SPIRect defining the new object bounds.
+ **/
+SPIRect *
+AccessibleBoundsChangedEvent_getNewBounds (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ /* TODO: check the event type. */
+ return cspi_internal_event_get_rect (foo);
+}
+
+static gint
+cspi_event_compare (gconstpointer p1, gconstpointer p2)
+{
+ const InternalEvent *e1 = p1, *e2 = p2;
+ return (gint) ((long) e2->id - (long) e1->id);
+}
+
+static InternalEvent *
+cspi_internal_event_lookup (const InternalEvent *e)
+{
+ InternalEvent *internal = NULL;
+ GSList *p =
+ g_slist_find_custom (_cspi_event_queue, e, cspi_event_compare);
+ if (p)
+ internal = p->data;
+ return internal;
+}
+
+static const InternalEvent *
+cspi_internal_event_check (const AccessibleEvent *e)
+{
+ InternalEvent *internal = (InternalEvent *) e;
+ if (internal->magic == SPI_INTERNAL_EVENT_MAGIC)
+ return internal;
+ else
+ return NULL;
+}
+
+static InternalEvent *
+cspi_internal_event_add (const InternalEvent *e)
+{
+ _cspi_event_queue = g_slist_prepend (_cspi_event_queue, (gpointer) e);
+ return (InternalEvent *) e;
+}
+
+static void
+cspi_internal_event_remove (const InternalEvent *e)
+{
+ GSList *link = g_slist_find_custom (_cspi_event_queue, e, cspi_event_compare);
+ if (link)
+ _cspi_event_queue = g_slist_remove_link (_cspi_event_queue, link);
+}
+
+/**
+ * AccessibleNameChangedEvent_getNameString:
+ * @e: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type "object:property-change:accessible_name:",
+ * returning the name.
+ *
+ * Returns: a UTF-8 text string representing the name of the
+ * object which recently changed.
+ **/
+char *
+AccessibleNameChangedEvent_getNameString (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ return cspi_internal_event_get_text (foo);
+}
+
+/**
+ * AccessibleEvent_ref:
+ * @e: a pointer to the #AccessibleEvent being referenced.
+ *
+ * Increments by 1 the reference count of the event
+ *
+ * Returns: TRUE if the function succeeded; FALSE if the pointer is not a
+ * valid event.
+ **/
+SPIBoolean
+AccessibleEvent_ref (const AccessibleEvent *e)
+{
+ const InternalEvent *private = cspi_internal_event_check (e);
+ if (private)
+ {
+ InternalEvent *event = cspi_internal_event_lookup (private);
+ /*
+ * put event in the cache if it's not there already,
+ * and increment refcount
+ */
+ if (!event)
+ {
+ event = cspi_internal_event_add (private);
+ }
+ event->ref_count++;
+ return TRUE;
+ }
+ else
+ return FALSE;
+}
+
+/**
+ * AccessibleEvent_unref:
+ * @e: a pointer to the #AccessibleEvent being referenced.
+ *
+ * Decrements by 1 the reference count of the event. The event is destroyed
+ * when the reference count recahes zero.
+ *
+ **/
+void
+AccessibleEvent_unref (const AccessibleEvent *e)
+{
+ const InternalEvent *private = cspi_internal_event_check (e);
+ /* decrement refcount and remove if appropriate */
+ if (private)
+ {
+ InternalEvent *event = cspi_internal_event_lookup (private);
+ if (event)
+ {
+ event->ref_count--;
+ if (event->ref_count < 1)
+ {
+ cspi_internal_event_remove (event);
+ g_free ((gpointer)e->type);
+ Accessible_unref (e->source);
+ if (event->event.v_type == EVENT_DATA_OBJECT)
+ {
+ Accessible_unref (event->event.v.accessible);
+ }
+ g_free ((gpointer)e);
+ }
+ }
+ }
+}
+
+typedef struct
+{
+ CSpiEventListener *listener;
+ char *event;
+ char *detail;
+} CSpiEventListenerEntry;
+
+static GList *event_listeners = NULL;
+
+static dbus_bool_t
+demarshal_rect (DBusMessageIter *iter, SPIRect *rect)
+{
+ dbus_int32_t x, y, width, height;
+ DBusMessageIter iter_struct;
+
+ dbus_message_iter_recurse (iter, &iter_struct);
+ if (dbus_message_iter_get_arg_type (&iter_struct) != DBUS_TYPE_INT32) return FALSE;
+ dbus_message_iter_get_basic (&iter_struct, &x);
+ dbus_message_iter_next (&iter_struct);
+ if (dbus_message_iter_get_arg_type (&iter_struct) != DBUS_TYPE_INT32) return FALSE;
+ dbus_message_iter_get_basic (&iter_struct, &y);
+ dbus_message_iter_next (&iter_struct);
+ if (dbus_message_iter_get_arg_type (&iter_struct) != DBUS_TYPE_INT32) return FALSE;
+ dbus_message_iter_get_basic (&iter_struct, &width);
+ dbus_message_iter_next (&iter_struct);
+ if (dbus_message_iter_get_arg_type (&iter_struct) != DBUS_TYPE_INT32) return FALSE;
+ dbus_message_iter_get_basic (&iter_struct, &height);
+ rect->x = x;
+ rect->y = y;
+ rect->width = width;
+ rect->height = height;
+ return TRUE;
+}
+
+static gboolean
+parse_eventType (const char *eventType, char **type, char **detail, char **matchrule)
+{
+ char *p, *q;
+ char *t, *d;
+
+ p = strchr (eventType, ':');
+ if (p) p = strchr (p + 1, ':');
+ if (!p) p = eventType + strlen (eventType);
+ t = g_malloc (p - eventType + 1);
+ if (t)
+ {
+ memcpy (t, eventType, p - eventType);
+ t[p - eventType] = '\0';
+ if (!strchr (t, ':'))
+ {
+ char *q = g_strconcat (t, ":", NULL);
+ if (1)
+ {
+ g_free (t);
+ t = q;
+ }
+ }
+ }
+ else return FALSE;
+ if (*p == ':')
+ {
+ d = g_strdup (p + 1);
+ if (!d)
+ {
+ g_free (t);
+ return FALSE;
+ }
+ }
+ else d = NULL;
+ if ((p = strchr (t, ':')))
+ {
+ *p = (p[1] == '\0'? '\0': '_');
+ }
+ while ((p = strchr (t, '-'))) *p = '_';
+ if (matchrule)
+ {
+ *matchrule = g_strdup_printf ("type='signal',interface='%s',member='%s'", spi_interface_accessible, t);
+ if (!*matchrule)
+ {
+ g_free (t);
+ if (d) g_free (d);
+ return FALSE;
+ }
+ }
+ if (type) *type = t;
+ if (detail) *detail = d;
+ return TRUE;
+}
+
+static void listener_data_free (CSpiEventListenerEntry *e)
+{
+ g_free (e->event);
+ if (e->detail) g_free (e->detail);
+ g_free (e);
+}
+
+/**
+ * SPI_registerGlobalEventListener:
+ * @listener: the #AccessibleEventListener to be registered against an
+ * event type.
+ * @eventType: a character string indicating the type of events for which
+ * notification is requested. Format is
+ * EventClass:major_type:minor_type:detail
+ * where all subfields other than EventClass are optional.
+ * EventClasses include "object", "window", "mouse",
+ * and toolkit events (e.g. "Gtk", "AWT").
+ * Examples: "focus:", "Gtk:GtkWidget:button_press_event".
+ *
+ * Legal object event types:
+ *
+ * (property change events)
+ *
+ * object:property-change
+ * object:property-change:accessible-name
+ * object:property-change:accessible-description
+ * object:property-change:accessible-parent
+ * object:property-change:accessible-value
+ * object:property-change:accessible-role
+ * object:property-change:accessible-table-caption
+ * object:property-change:accessible-table-column-description
+ * object:property-change:accessible-table-column-header
+ * object:property-change:accessible-table-row-description
+ * object:property-change:accessible-table-row-header
+ * object:property-change:accessible-table-summary
+ *
+ * (other object events)
+ *
+ * object:state-changed
+ * object:children-changed
+ * object:visible-data-changed
+ * object:selection-changed
+ * object:text-selection-changed
+ * object:text-changed
+ * object:text-caret-moved
+ * object:row-inserted
+ * object:row-reordered
+ * object:row-deleted
+ * object:column-inserted
+ * object:column-reordered
+ * object:column-deleted
+ * object:model-changed
+ * object:active-descendant-changed
+ *
+ * (window events)
+ *
+ * window:minimize
+ * window:maximize
+ * window:restore
+ * window:close
+ * window:create
+ * window:reparent
+ * window:desktop-create
+ * window:desktop-destroy
+ * window:activate
+ * window:deactivate
+ * window:raise
+ * window:lower
+ * window:move
+ * window:resize
+ * window:shade
+ * window:unshade
+ * window:restyle
+ *
+ * (other events)
+ *
+ * focus:
+ * mouse:abs
+ * mouse:rel
+ * mouse:b1p
+ * mouse:b1r
+ * mouse:b2p
+ * mouse:b2r
+ * mouse:b3p
+ * mouse:b3r
+ *
+ * NOTE: this string may be UTF-8, but should not contain byte value 56
+ * (ascii ':'), except as a delimiter, since non-UTF-8 string
+ * delimiting functions are used internally.
+ * In general, listening to
+ * toolkit-specific events is not recommended.
+ *
+ * Add an in-process callback function to an existing AccessibleEventListener.
+ *
+ * Returns: #TRUE if successful, otherwise #FALSE.
+ **/
+SPIBoolean
+SPI_registerGlobalEventListener (AccessibleEventListener *listener,
+ const char *eventType)
+{
+ CSpiEventListenerEntry *e;
+ char *matchrule;
+ DBusError error;
+ GList *new_list;
+
+ if (!listener)
+ {
+ return FALSE;
+ }
+
+ e = g_new (CSpiEventListenerEntry, 1);
+ if (!e) return FALSE;
+ e->listener = listener;
+ if (!parse_eventType (eventType, &e->event, &e->detail, &matchrule))
+ {
+ g_free (e);
+ return FALSE;
+ }
+ new_list = g_list_prepend (event_listeners, e);
+ if (!new_list)
+ {
+ listener_data_free (e);
+ return FALSE;
+ }
+ event_listeners = new_list;
+ dbus_error_init (&error);
+ dbus_bus_add_match (cspi_bus(), matchrule, &error);
+ if (error.message)
+ {
+ g_warning ("Adding match: %s", error.message);
+ }
return TRUE;
}
/**
- * KeystrokeListener_removeCallback:
- * @listener: the #KeystrokeListener instance to modify.
- * @callback: an #KeystrokeListenerCB function pointer.
+ * SPI_deregisterGlobalEventListenerAll:
+ * @listener: the #AccessibleEventListener to be registered against
+ * an event type.
*
- * Remove an in-process callback function from an existing KeystrokeListener.
+ * deregisters an AccessibleEventListener from the registry, for all
+ * event types it may be listening to. Use
+ * AccessibleEventListener_unref to release the
+ * listener reference.
*
* Returns: #TRUE if successful, otherwise #FALSE.
+ **/
+SPIBoolean
+SPI_deregisterGlobalEventListenerAll (AccessibleEventListener *listener)
+{
+ GList *l;
+
+ if (!listener)
+ {
+ return FALSE;
+ }
+
+ for (l = event_listeners; l;)
+ {
+ CSpiEventListenerEntry *e = l->data;
+ if (e->listener == listener)
+ {
+ listener_data_free (e);
+ l = g_list_remove (l, e);
+ }
+ else l = g_list_next (l);
+ }
+ return TRUE;
+}
+
+/**
+ * SPI_deregisterGlobalEventListener:
+ * @listener: the #AccessibleEventListener registered against an event type.
+ * @eventType: a string specifying the event type for which this
+ * listener is to be deregistered.
+ *
+ * deregisters an AccessibleEventListener from the registry, for a specific
+ * event type.
*
+ * Returns: #TRUE if successful, otherwise #FALSE.
**/
-boolean
-KeystrokeListener_removeCallback (KeystrokeListener *listener,
- KeystrokeListenerCB callback)
+SPIBoolean
+SPI_deregisterGlobalEventListener (AccessibleEventListener *listener,
+ const char *eventType)
{
- keystroke_spi_listener_remove_callback (listener, callback);
+ char *type, *detail, *matchrule;
+ GList *l;
+
+ if (!parse_eventType (eventType, &type, &detail, &matchrule))
+ {
+ return FALSE;
+ }
+ if (!listener)
+ {
+ return FALSE;
+ }
+
+ for (l = event_listeners; l;)
+ {
+ CSpiEventListenerEntry *e = l->data;
+ if (e->listener == listener && !strcmp (e->event, type) && (e->detail == detail || !strcmp (e->detail, detail)))
+ {
+ DBusError error;
+ listener_data_free (e);
+ l = g_list_remove (l, e);
+ dbus_error_init (&error);
+ dbus_bus_remove_match (cspi_bus(), matchrule, &error);
+ }
+ else l = g_list_next (l);
+ }
+ g_free (type);
+ if (detail) g_free (detail);
+ g_free (matchrule);
return TRUE;
}
+void
+cspi_dispatch_event (AccessibleEvent *e)
+{
+ char *event, *detail;
+ GList *l;
+
+ if (!parse_eventType (e->type, &event, &detail, NULL))
+ {
+ g_warning ("Couldn't parse event: %s\n", e->type);
+ return;
+ }
+ for (l = event_listeners; l; l = g_list_next (l))
+ {
+ CSpiEventListenerEntry *entry = l->data;
+ if (!strcmp (event, entry->event) &&
+ (entry->detail == NULL || !strcmp (detail, entry->detail)))
+ {
+ CSpiEventListenerClass *klass = CSPI_EVENT_LISTENER_GET_CLASS (entry->listener);
+ if (klass->event) (*klass->event)(entry->listener, e);
+ }
+ }
+ if (detail) g_free (detail);
+ g_free (event);
+}
+
+DBusHandlerResult
+cspi_dbus_handle_event (DBusConnection *bus, DBusMessage *message, void *data)
+{
+ char *detail = NULL;
+ const char *event = dbus_message_get_member (message);
+ DBusMessageIter iter, iter_variant;
+ dbus_message_iter_init (message, &iter);
+ AccessibleEvent e;
+ dbus_int32_t detail1, detail2;
+ char *p;
+
+ g_return_if_fail (dbus_message_iter_get_arg_type (&iter) == DBUS_TYPE_STRING);
+ dbus_message_iter_get_basic (&iter, &detail);
+ dbus_message_iter_next (&iter);
+ g_return_if_fail (dbus_message_iter_get_arg_type (&iter) == DBUS_TYPE_INT32);
+ dbus_message_iter_get_basic (&iter, &detail1);
+ e.detail1 = detail1;
+ dbus_message_iter_next (&iter);
+ g_return_if_fail (dbus_message_iter_get_arg_type (&iter) == DBUS_TYPE_INT32);
+ dbus_message_iter_get_basic (&iter, &detail2);
+ e.detail2 = detail2;
+ dbus_message_iter_next (&iter);
+ e.type = g_strdup (event);
+ p = strchr (e.type, '_');
+ if (p) *p = ':';
+ if (detail[0] != '\0')
+ {
+ p = g_strconcat (e.type, ":", detail, NULL);
+ if (p)
+ {
+ g_free (e.type);
+ e.type = p;
+ }
+ }
+ while ((p = strchr (e.type, '_'))) *p = '-';
+ e.source = cspi_ref_accessible (dbus_message_get_sender(message), dbus_message_get_path(message));
+ dbus_message_iter_recurse (&iter, &iter_variant);
+ switch (dbus_message_iter_get_arg_type (&iter_variant))
+ {
+ case DBUS_TYPE_OBJECT_PATH:
+ {
+ dbus_message_iter_get_basic (&iter_variant, &p);
+ e.v_type = EVENT_DATA_OBJECT;
+ e.v.accessible = cspi_ref_accessible (dbus_message_get_sender(message), p);
+ break;
+ }
+ case DBUS_TYPE_STRING:
+ {
+ dbus_message_iter_get_basic (&iter_variant, &p);
+ e.v_type = EVENT_DATA_STRING;
+ e.v.text = g_strdup (p);
+ break;
+ }
+ case DBUS_TYPE_STRUCT:
+ {
+ if (demarshal_rect (&iter_variant, &e.v.rect))
+ {
+ e.v_type = EVENT_DATA_RECT;
+ }
+ break;
+ }
+ default:
+ break;
+ }
+ cspi_dispatch_event (&e);
+ return DBUS_HANDLER_RESULT_HANDLED;
+}
projects / platform / core / uifw / at-spi2-atk.git / blobdiff